e031a99c0b
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1027074 13f79535-47bb-0310-9956-ffa450edef68
141 lines
5.1 KiB
Text
141 lines
5.1 KiB
Text
Calculator CORBA Reference Sample
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=================================
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This sample illustrates the use of the Tuscany CORBA Binding to reference
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services that are hosted as CORBA services.
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The README in the samples directory (the directory above this) provides
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general instructions about building and running samples. Take a look there
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first.
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If you just want to run it to see what happens open a command prompt, first
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navigate to the calculator-corba-service sample and do:
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ant run
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OR if you don't have ant, on Windows do
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java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator-corba-service.jar calculator.CalculatorCORBAServer
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and on *nix do
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java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-corba-service.jar calculator.CalculatorCORBAServer
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Now you have the server running you need to open another command prompt, navigate
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to this sample directory and do:
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ant run
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OR if you don't have ant, on Windows do
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java -cp ..\..\lib\tuscany-sca-manifest.jar;target\sample-calculator-corba-reference.jar calculator.CalculatorClient
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and on *nix do
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java -cp ../../lib/tuscany-sca-manifest.jar:target/sample-calculator-corba-reference.jar calculator.CalculatorClient
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Sample Overview
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---------------
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This sample extends the calculator sample by replacing the local wired
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connections with CORBA bindings. Instead of local add, subtract, multiply and
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divide components, a CORBA service implementation now provides the
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add, subtract, multiply and divide interfaces and is hosted as an CORBA object.
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References specified in the .composite file include a CORBA binding which targets
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this CORBA object. The name service which is used in CORBA communication is
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provided in the test case class - CalculatorCORBAReferenceTestCase.java.
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This sample adds a number of classes to the basic calculator sample:
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calculator-corba-reference/
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src/
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main/
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java/
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calculator/
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CalculatorService.java - as calculator sample
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AddService.java - as calculator sample
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SubtractService.java - as calculator sample
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MultiplyService.java - as calculator sample
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DivideService.java - as calculator sample
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CalculatorClient.java - as calculator sample
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CalculatorServiceImpl.java - calls the CORBA service
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that provides the target for the
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CORBA bindings in the composite
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resources/
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CalculatorCORBAReference.composite - the SCA assembly for this sample
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test/
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java/
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calculator/
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CalculatorCORBAReferenceTestCase.java - JUnit test case
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CalculatorCORBAServant.java - CORBA service implementation
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idl/ - contains files generated
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from the IDL file. Files are
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used to create a CORBA object which
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will be consumed by SCA references.
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_CalculatorCORBAServiceImplBase.java
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CalculatorCORBAService.java
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CalculatorCORBAServiceOperations.java
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resources/
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CalculatorCORBA.idl - IDL description for CORBA object
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pom.xml - the Maven build file
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Note. As this test creates and uses local network connections you may need to
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configure your firewall, if you are running one, to allow the test to run
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successfully.
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Building And Running The Sample Using Ant
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-----------------------------------------
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With the binary distribution the sample can be built and run using Ant.
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The calculator-corba-service sample provides a CORBA server that acts as a target
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for the SCA CORBA binding. Start a new console and use the following commands.
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cd calculator-corba-service
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ant compile
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ant run
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This will run up the server and display the following.
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run:
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[java] Calculator CORBA server started (press enter to shutdown)
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The client is very similar to the calculator sample. It starts the SCA runtime
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and calls each of the calculator operations. In doing this the CORBA binding
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makes calls out to the CORBA server you started in the previous step. Start
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a new console and use the following commands.
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cd calculator-corba-reference
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ant compile
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ant run
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You should see the following output from the run target.
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run:
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[java] 3 + 2=5.0
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[java] 3 - 2=1.0
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[java] 3 * 2=6.0
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[java] 3 / 2=1.5
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If you now return to the console window running the server and press enter the
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server should stop.
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Building And Running The Sample Using Maven
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-------------------------------------------
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With either the binary or source distributions the sample can be built and run
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using Maven as follows.
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cd calculator-corba-reference
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mvn
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You should see the following output from the test phase.
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-------------------------------------------------------
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T E S T S
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-------------------------------------------------------
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Running calculator.CalculatorCORBAReferenceTestCase
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Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.308 sec
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Results :
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Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
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This shows that the Junit test cases have run successfully.
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